| ; RUN: llc -O0 -mtriple=x86_64-apple-darwin < %s -filetype=obj \ |
| ; RUN: | llvm-dwarfdump -v -debug-info - \ |
| ; RUN: | FileCheck %s -check-prefix=CHECK -check-prefix=DWARF4 |
| ; RUN: llc -O0 -mtriple=x86_64-apple-darwin < %s -filetype=obj -dwarf-version=3\ |
| ; RUN: | llvm-dwarfdump -v -debug-info - \ |
| ; RUN: | FileCheck %s -check-prefix=CHECK -check-prefix=DWARF3 |
| |
| ; DWARF4: DW_AT_location [DW_FORM_sec_offset] (0x00000000 |
| ; DWARF4-NEXT: {{.*}}: DW_OP_breg6 RBP-40, DW_OP_deref, DW_OP_deref |
| ; DWARF4-NEXT: {{.*}}: DW_OP_breg0 RAX+0, DW_OP_deref |
| ; DWARF4-NEXT: {{.*}}: DW_OP_breg6 RBP-40, DW_OP_deref, DW_OP_deref) |
| |
| ; DWARF3: DW_AT_location [DW_FORM_data4] (0x00000000 |
| ; DWARF3-NEXT: {{.*}}: DW_OP_breg6 RBP-40, DW_OP_deref, DW_OP_deref |
| ; DWARF3-NEXT: {{.*}}: DW_OP_breg0 RAX+0, DW_OP_deref |
| |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000067] = "vla") |
| |
| ; Check the DEBUG_VALUE comments for good measure. |
| ; RUN: llc -O0 -mtriple=x86_64-apple-darwin %s -o - -filetype=asm | FileCheck %s -check-prefix=ASM-CHECK |
| ; vla should have a register-indirect address at one point. |
| ; ASM-CHECK: DEBUG_VALUE: vla <- [DW_OP_deref] [$rax+0] |
| ; ASM-CHECK: DW_OP_breg6 |
| |
| ; RUN: llvm-as %s -o - | llvm-dis - | FileCheck %s --check-prefix=PRETTY-PRINT |
| ; PRETTY-PRINT: DIExpression(DW_OP_deref) |
| |
| define void @testVLAwithSize(i32 %s) nounwind uwtable ssp !dbg !5 { |
| entry: |
| %s.addr = alloca i32, align 4 |
| %saved_stack = alloca ptr |
| %i = alloca i32, align 4 |
| store i32 %s, ptr %s.addr, align 4 |
| call void @llvm.dbg.declare(metadata ptr %s.addr, metadata !10, metadata !DIExpression()), !dbg !11 |
| %0 = load i32, ptr %s.addr, align 4, !dbg !12 |
| %1 = zext i32 %0 to i64, !dbg !12 |
| %2 = call ptr @llvm.stacksave(), !dbg !12 |
| store ptr %2, ptr %saved_stack, !dbg !12 |
| %vla = alloca i32, i64 %1, align 16, !dbg !12 |
| call void @llvm.dbg.declare(metadata ptr %vla, metadata !14, metadata !30), !dbg !18 |
| call void @llvm.dbg.declare(metadata ptr %i, metadata !19, metadata !DIExpression()), !dbg !20 |
| store i32 0, ptr %i, align 4, !dbg !21 |
| br label %for.cond, !dbg !21 |
| |
| for.cond: ; preds = %for.inc, %entry |
| %3 = load i32, ptr %i, align 4, !dbg !21 |
| %4 = load i32, ptr %s.addr, align 4, !dbg !21 |
| %cmp = icmp slt i32 %3, %4, !dbg !21 |
| br i1 %cmp, label %for.body, label %for.end, !dbg !21 |
| |
| for.body: ; preds = %for.cond |
| %5 = load i32, ptr %i, align 4, !dbg !23 |
| %6 = load i32, ptr %i, align 4, !dbg !23 |
| %mul = mul nsw i32 %5, %6, !dbg !23 |
| %7 = load i32, ptr %i, align 4, !dbg !23 |
| %idxprom = sext i32 %7 to i64, !dbg !23 |
| %arrayidx = getelementptr inbounds i32, ptr %vla, i64 %idxprom, !dbg !23 |
| store i32 %mul, ptr %arrayidx, align 4, !dbg !23 |
| br label %for.inc, !dbg !25 |
| |
| for.inc: ; preds = %for.body |
| %8 = load i32, ptr %i, align 4, !dbg !26 |
| %inc = add nsw i32 %8, 1, !dbg !26 |
| store i32 %inc, ptr %i, align 4, !dbg !26 |
| br label %for.cond, !dbg !26 |
| |
| for.end: ; preds = %for.cond |
| %9 = load ptr, ptr %saved_stack, !dbg !27 |
| call void @llvm.stackrestore(ptr %9), !dbg !27 |
| ret void, !dbg !27 |
| } |
| |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone |
| |
| declare ptr @llvm.stacksave() nounwind |
| |
| declare void @llvm.stackrestore(ptr) nounwind |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!29} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.2 (trunk 156005) (llvm/trunk 156000)", isOptimized: false, emissionKind: FullDebug, file: !28, enums: !1, retainedTypes: !1, globals: !1, imports: !1) |
| !1 = !{} |
| !5 = distinct !DISubprogram(name: "testVLAwithSize", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !28, scope: !6, type: !7, retainedNodes: !1) |
| !6 = !DIFile(filename: "bar.c", directory: "/Users/echristo/tmp") |
| !7 = !DISubroutineType(types: !8) |
| !8 = !{null, !9} |
| !9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !10 = !DILocalVariable(name: "s", line: 1, arg: 1, scope: !5, file: !6, type: !9) |
| !11 = !DILocation(line: 1, column: 26, scope: !5) |
| !12 = !DILocation(line: 3, column: 13, scope: !13) |
| !13 = distinct !DILexicalBlock(line: 2, column: 1, file: !28, scope: !5) |
| !14 = !DILocalVariable(name: "vla", line: 3, scope: !13, file: !6, type: !15) |
| !15 = !DICompositeType(tag: DW_TAG_array_type, align: 32, baseType: !9, elements: !16) |
| !16 = !{!17} |
| !17 = !DISubrange(count: -1) |
| !18 = !DILocation(line: 3, column: 7, scope: !13) |
| !19 = !DILocalVariable(name: "i", line: 4, scope: !13, file: !6, type: !9) |
| !20 = !DILocation(line: 4, column: 7, scope: !13) |
| !21 = !DILocation(line: 5, column: 8, scope: !22) |
| !22 = distinct !DILexicalBlock(line: 5, column: 3, file: !28, scope: !13) |
| !23 = !DILocation(line: 6, column: 5, scope: !24) |
| !24 = distinct !DILexicalBlock(line: 5, column: 27, file: !28, scope: !22) |
| !25 = !DILocation(line: 7, column: 3, scope: !24) |
| !26 = !DILocation(line: 5, column: 22, scope: !22) |
| !27 = !DILocation(line: 8, column: 1, scope: !13) |
| !28 = !DIFile(filename: "bar.c", directory: "/Users/echristo/tmp") |
| !29 = !{i32 1, !"Debug Info Version", i32 3} |
| !30 = !DIExpression(DW_OP_deref) |